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Backport of #102689 to 25.8.16: Fix columns_substreams.txt corruption during column rename in some cases#1796

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Backport of #102689 to 25.8.16: Fix columns_substreams.txt corruption during column rename in some cases#1796
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releases/25.8.16from
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Backport of ClickHouse#102689 by @Avogar
Fix columns_substreams.txt corruption during column rename in some cases

Changelog category (leave one):

  • Critical Bug Fix (crash, data loss, RBAC) or LOGICAL_ERROR

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Fix columns_substreams.txt corruption during column rename in some cases. Closes ClickHouse#102259 (ClickHouse#102689 by @Avogar)

CI/CD Options

Exclude tests:

  • Fast test
  • Integration Tests
  • Stateless tests
  • Stateful tests
  • Performance tests
  • All with ASAN
  • All with TSAN
  • All with MSAN
  • All with UBSAN
  • All with Coverage
  • All with Aarch64
  • All Regression
  • Disable CI Cache

Regression jobs to run:

  • Fast suites (mostly <1h)
  • Aggregate Functions (2h)
  • Alter (1.5h)
  • Benchmark (30m)
  • ClickHouse Keeper (1h)
  • Iceberg (2h)
  • LDAP (1h)
  • Parquet (1.5h)
  • RBAC (1.5h)
  • SSL Server (1h)
  • S3 (2h)
  • S3 Export (2h)
  • Swarms (30m)
  • Tiered Storage (2h)

…ename-bug

Fix columns_substreams.txt corruption during column rename in some cases
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Workflow [PR], commit [02fa190]

@ianton-ru ianton-ru added 25.8 25.8 Altinity Stable 25.8.16 25.8.16 Stable backport Backport labels May 15, 2026
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